1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lady_Fox [76]
3 years ago
11

Bill is bisecting an angle with technology Which of the following describes his next step?

Mathematics
2 answers:
maw [93]3 years ago
6 0

Answer:

  Mark point E where the circle intersects segment BC

Step-by-step explanation:

Apparently, Bill is using "technology" to perform the same steps that he would use with compass and straightedge. Those steps involve finding a point equidistant from the rays BD and BC. That is generally done by finding the intersection point(s) of circles centered at D and "E", where "E" is the intersection point of the circle B with segment BC.

Bill's next step is to mark point E, so he can use it as the center of one of the circles just described.

___

<em>Comment on Bill's "technology"</em>

In the technology I would use for this purpose, the next step would be "select the angle bisector tool."

Ad libitum [116K]3 years ago
4 0

Answer:

c

Step-by-step explanation:

You might be interested in
Write an exponential function represented by the table
Alinara [238K]

Answer:

50y= -2248283

Step-by-step explanation:

used photo math

3 0
2 years ago
The probability that your call to a service line is answered in less than 30 seconds is 0.85. Assume that your calls are indepen
aev [14]

Answer:

a) 0.1720

b) 0.8298

c) 19

Step-by-step explanation:

For each call, there are only two possible outcomes. Either they are answered in less than 30 seconds. Or they are not. The probabilities for each call are independent. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In this problem we have that:

p = 0.85

(a) If you call 12 times, what is the probability that exactly 9 of your calls are answered within 30 seconds? Round your answer to four decimal places (e.g. 98.7654).

This is P(X = 9) when n = 12.

So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 9) = C_{12,9}.(0.85)^{9}.(0.15)^{3} = 0.1720

(b) If you call 20 times, what is the probability that at least 16 calls are answered in less than 30 seconds? Round your answer to four decimal places (e.g. 98.7654).

This is P(X \geq 16) when n = 20

So

P(X \geq 16) = P(X = 16) + P(X = 17) + P(X = 18) + P(X = 19) + P(X = 20)

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 16) = C_{20,16}.(0.85)^{16}.(0.15)^{4} = 0.1821

P(X = 17) = C_{20,17}.(0.85)^{17}.(0.15)^{3} = 0.2428

P(X = 18) = C_{20,18}.(0.85)^{18}.(0.15)^{2} = 0.2293

P(X = 19) = C_{20,19}.(0.85)^{19}.(0.15)^{1} = 0.1368

P(X = 20) = C_{20,20}.(0.85)^{20}.(0.15)^{0} = 0.0388

So

P(X \geq 16) = P(X = 16) + P(X = 17) + P(X = 18) + P(X = 19) + P(X = 20) = 0.1821 + 0.2428 + 0.2293 + 0.1368 + 0.0388 = 0.8298

(c) If you call 22 times, what is the mean number of calls that are answered in less than 30 seconds? Round your answer to the nearest integer.

The expected value of the binomial distribution is:

E(X) = np

In this question, we have n = 22

So

E(X) = 22*0.85 = 18.7

The nearest integer to 18.7 is 19.

7 0
3 years ago
Jeff drove 249 laps around the racetrack is 9 miles long. how many miles did jeff drive
mr_godi [17]
Hey there Jnorman1287.

Answer:

Distance = 249 x 9
               = 2,241

Hope this helps :D

<em>~Natasha♥</em>
5 0
3 years ago
Solve pls brainliest
Shtirlitz [24]

Answer:

1.8 or 1 4/5 should be the answer!

8 0
2 years ago
Read 2 more answers
Ramona is 39 years old, and she owns her car, which she uses to drive to work. Her collision deductible is $500, and she does no
laiz [17]

Answer:

Ramona’s annual premium is $1725.

Step-by-step explanation:

($690) X 2 X 1.25 = $1725.

7 0
3 years ago
Other questions:
  • Please quickly help me!!
    5·1 answer
  • The following dot plots shows the number of hours of sleep employees got before a major sale at three stores. Each dot represent
    7·2 answers
  • Write an equation that represents the line.
    8·1 answer
  • Why might you expect most absolute value equations to have two solutions? Why not three or four?
    10·1 answer
  • If 2 is added to a certain number, the result is the same as would be obtained if twice that number were subtracted from 32. Wha
    9·1 answer
  • Karlie ate lunch with her friends at Chuy's. They had a delicious meal that 20 cost $62. If the sales tax rate is 8.25% what is
    13·1 answer
  • Pls help i will give brainlist to any one just tell me the answer even if its not there
    10·1 answer
  • Grade 5
    11·1 answer
  • Option A<br>Option B<br>Option C<br>Option D​
    7·2 answers
  • What is 0.128 as a fraction​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!